“This green line looks like the death of permafrost — it’s flatlining,” Louise Farquharson said to an audience of a few dozen scientists. Her quiet voice came through speakers over the muffled clicking of keyboards and occasional coughs in a dimly lit room at the 2019 American Geophysical Union fall meeting in San Francisco. […]
Forty-one volcanoes that have erupted since the 1700s. Eleven percent of the world’s earthquakes. Glaciers of an ever-changing number that probably tops 100,000. Alaska has its share of superlatives, and here’s another one — Alaska has the largest maar on Earth. What’s a maar? It looks a lot like a lake, it’s circular and […]
Increasing ground temperatures in the Arctic are indicators of global climate change, but until recently, areas of cold permafrost were thought to be relatively immune to severe impacts. A new study by Antoni Lewkowicz, a professor in the Department of Geography, Environment and Geomatics at the University of Ottawa and published in the journal […]
[dropcap]T[/dropcap]emperatures in the Arctic are rising twice as fast as in the rest of the world, causing permafrost soils to thaw. Permafrost peatlands are biogeochemical hot spots in the Arctic as they store vast amounts of carbon. Permafrost thaw could release part of these long-term immobile carbon stocks as the greenhouse gases carbon dioxide (CO2) […]